Question

How is humidity related to air pressure? A.. Humid air has higher pressure because of the heaviness of water.. . B.. Humid air is lighter, so it has lower pressure. C.. Air pressure is lower below sea level because of the humidity. D.. Humidity and air pressure are not related..

Answer 1

Humidity is related to air pressure because : B. humid air is lighter , so it has lower pressure
Water molecules are lighter compared to the usual nitrogen and oxygen molecule that usually exist in the air.

Hope this helps

Answer 2

Explanation :

The amount of water vapor present in our surrounding is called the humidity.

We know that the pressure is equal to the force acting per unit area. Atmospheric pressure is defined as the force acting by air on a surface.

The relation between the atmospheric pressure and humidity is inverse i.e. if the air is more humid, the air pressure is low.

Hence, the correct option is (B) "Humid air is lighter, so it has lower pressure."